Karl Stoltze
Internal Medicine Physician · Portland, OR
Karl Stoltze is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1265895635, issued on Apr 1, 2016. Check the license on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karl Stoltze
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD2019-0293 NM
Self-reported in NPPES; status is on the state search - Practice location
- 2800 N Vancouver Ave Ste 230, Portland, OR 97227
- Phone
- (503) 413-4340
- Enumerated
- Apr 1, 2016
- Record last updated
- Jul 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (503) 413-4898
- Medicare enrollment
- Enrolled (PECOS I20220616002681); accepts Medicare assignment
- Medical or professional school
- University Of New Mexico School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 2800 N Vancouver Ave Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nathan Harrah, RDRegistered Dietitian1326829284
- Caitlin Laman, PA-CPhysician Assistant1790644193
Verify Karl Stoltze in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
373 Medicare Part D claims for 131 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Metoprolol Succinate24 claims
- Atorvastatin Calcium21 claims
- Furosemide16 claims
- Spironolactone16 claims
- Eliquis15 claims
- Lisinopril14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northern Colorado Hospitalists Professional LLCFort Collins, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Stoltze among 2,116 internal medicine physician records in Oregon
Karl Stoltze is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 78% of them.
- NPI issued2016 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2008 among the 1,232 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Douglas Beers, MDPortland, OR 972271720055197
- Denise Bilbao, M.D.Portland, OR 972271538173943
- Duane Burroughs, MDPortland, OR 972271134197213
- Smitha Chadaga, MDPortland, OR 972271952362295
- Darcy Deering, M.D.Portland, OR 972271205801065
- Lori Farrell, M.D.Portland, OR 972271235103987
- Elise Fulsang, MDPortland, OR 972271952305385
- Ameet Jhooty, M.DPortland, OR 972271295795938
Common questions
What is Karl Stoltze's NPI number?
Karl Stoltze's National Provider Identifier (NPI) is 1265895635, issued on Apr 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Karl Stoltze located?
The NPPES record lists a practice address at 2800 N Vancouver Ave Ste 230, Portland, OR, 97227. Phone: (503) 413-4340. Providers update this record themselves, so call before visiting.
How can I verify Karl Stoltze's license?
Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karl Stoltze prescribe under Medicare Part D?
In 2024, Karl Stoltze had 373 Medicare Part D claims for 131 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karl Stoltze's MIPS final score?
The 2023 MIPS final score is 89.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.